Hich of the following equations is balanced correctly?

A.

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O

B.

3 H2O → H2 + 3 O2

C.

2 C3H3 + O2 → 2 CO2 + H2O

D.

Cl2 + 2 KBr → KCl + Br2

A rock is thrown downward from an unknown height above the ground with an initial speed of 10m/s. It strikes the ground 3s later. Determine the initial

The factor being changed by the person doing the experiment in a controlled study is called the ... A) data. B) controlled variable. C) dependent variable. D) independent variable.

If a raindrop is 0.05 cm3 in volume, what would the volume of an avogadro number of raindrops be?

Protons are released from rest in a Van de Graaff accelerator. They start from a region where the potential is 7.15 MV then travel through a vacuum region to a region where the potential is zero.

The speed of light is 3.00*108m/s. How long does it take for light to travel from Earth to the Moon and back again? Express your answer using two significant figures.

Explain the process of synaptic transmission, beginning with the neurotransmitters at the axon terminal of the presynaptic cell and ending with the impulse being sent down the postsynaptic cell.

Which of the following is a false statement about dispersion forces? View Available Hint (s) Which of the following is a false statement about dispersion forces?

Which choice defines AC and DC correctly? In AC, electrons moving in one direction. In DC, they move in one direction and then in the other direction. In DC, electrons move in only one direction.

Why a c is advantageable than dc

Which is the larger change in temperature 1 Kelvin or 1 degree Celsius